APA (7th ed.) Citation

Strevens, P. (1980). Teaching English as an international language: From practice to principle. Pergamon Press.

Chicago Style (17th ed.) Citation

Strevens, Peter. Teaching English as an International Language: From Practice to Principle. Oxford: Pergamon Press, 1980.

MLA (9th ed.) Citation

Strevens, Peter. Teaching English as an International Language: From Practice to Principle. Pergamon Press, 1980.